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| 2. |
- Karlsson, Omar, et al.
(författare)
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Weakening association of parental education: analysis of child health outcomes in 43 low- and middle-income countries
- 2018
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Ingår i: International Journal of Epidemiology. - : Oxford University Press (OUP). - 0300-5771 .- 1464-3685. ; 48:1, s. 83-97
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Tidskriftsartikel (refereegranskat)abstract
- BackgroundParental education has been suggested to be an effective instrument for improving child health in low- and middle-income countries. Both education and child health have improved, however, as well as related factors. These changes may have implications for the observed association.MethodsWe used Demographic and Health Surveys conducted in 43 countries at two points in time, between 1991 and 2016, to test if the association of parental education with child health has changed over time. We explored how changes relate to commonly cited confounders and pathways, including fertility, household living standards, health care use, urbanicity and geographical clustering. We used linear probability models, Gelbach decomposition, and assessed a range of sensitivity specifications.ResultsThe point estimate for an additional year of maternal education has attenuated by 0.27% points (56%) for under-5 mortality, 0.34% points (15%) for child stunting, 0.42% points (30%) for child underweight and 0.09% points (24%) for child wasting. The point estimate for paternal education has attenuated by 0.20% points (53%) for under-5 mortality, 0.15% points (8%) for child stunting, 0.28% points (24%) for underweight and 0.06% points (19%) for wasting. Changes in confounding and mediation by fertility, household living standards and urban-rural differences explain to a large extent the attenuations. Geospatial clustering increasingly drives the association of parental education with child health.ConclusionsThe role of parental education in child health has attenuated considerably over time in low-resource settings. Decision makers should take into account this weakening association when designing policies aimed at improving child health.
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| 3. |
- Astell-Burt, Thomas, et al.
(författare)
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More green, less lonely? : A longitudinal cohort study
- 2022
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Ingår i: International Journal of Epidemiology. - : Oxford University Press. - 0300-5771 .- 1464-3685. ; 51:1, s. 99-110
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Tidskriftsartikel (refereegranskat)abstract
- BackgroundUrban greening may reduce loneliness by offering opportunities for solace, social reconnection and supporting processes such as stress relief. We (i) assessed associations between residential green space and cumulative incidence of, and relief from, loneliness over 4 years; and (ii) explored contingencies by age, sex, disability and cohabitation status.MethodsMultilevel logistic regressions of change in loneliness status in 8049 city-dwellers between 2013 (baseline) and 2017 (follow-up) in the Household, Income and Labour Dynamics in Australia study. Associations with objectively measured discrete green-space buffers (e.g. parks) (<400, <800 and <1600 m) were adjusted for age, sex, disability, cohabitation status, children and socio-economic variables. Results were translated into absolute risk reductions in loneliness per 10% increase in urban greening.ResultsThe absolute risk of loneliness rose from 15.9% to 16.9% over the 4 years; however, a 10% increase in urban greening within 1.6 km was associated with lower cumulative incident loneliness [odds ratio (OR) = 0.927, 95% confidence interval (CI) = 0.862 to 0.996; absolute risk reduction = 0.66%]. Stronger association was observed for people living alone (OR = 0.828, 95% CI = 0.725 to 0.944). In comparison to people with <10% green space, the ORs for cumulative incident loneliness were 0.833 (95% CI = 0.695 to 0.997), 0.790 (95% CI = 0.624 to 1.000) and 0.736 (95% CI = 0.549 to 0.986) for 10–20%, 20–30% and >30% green space, respectively. Compared with the <10% green-space reference group with 13.78% incident loneliness over 4 years and conservatively assuming no impact on incident loneliness, associations translated into absolute risk reductions of 1.70%, 2.26% and 2.72% within populations with 10–20%, 20–30% and >30% green space, respectively. These associations were stronger again for people living alone, with 10–20% (OR = 0.608, 95% CI = 0.448 to 0.826), 20–30% (OR = 0.649, 95% CI = 0.436 to 0.966) and >30% (OR = 0.480, 95% CI = 0.278 to 0.829) green space within 1600 m. No age, sex or disability-related contingencies, associations with green space within 400 or 800 m or relief from loneliness reported at baseline were observed.ConclusionsA lower cumulative incidence of loneliness was observed among people with more green space within 1600 m of home, especially for people living alone. Potential biopsychosocial mechanisms warrant investigation.
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| 4. |
- Beckley, Amber L., et al.
(författare)
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Association of height and violent criminality : results from a Swedish total population study
- 2014
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Ingår i: International Journal of Epidemiology. - : Oxford University Press (OUP). - 0300-5771 .- 1464-3685. ; 43:3, s. 835-842
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Tidskriftsartikel (refereegranskat)abstract
- Background: Violent criminality is at least moderately heritable, but the mechanisms behind this remain largely unexplained. Height, a highly heritable trait, may be involved but no study has estimated the effect of height on crime while simultaneously accounting for important demographic, biological and other heritable confounders. Methods: We linked nationwide, longitudinal registers for 760 000 men who underwent mandatory military conscription from 1980 through 1992 in Sweden, to assess the association between height and being convicted of a violent crime. We used Cox proportional hazard modelling and controlled for three types of potential confounders: physical characteristics, childhood demographics and general cognitive ability (intelligence). Results: In unadjusted analyses, height had a moderate negative relationship to violent crime; the shortest of men were twice as likely to be convicted of a violent crime as the tallest. However, when simultaneously controlling for all measured confounders, height was weakly and positively related to violent crime. Intelligence had the individually strongest mitigating effect on the height-crime relationship. Conclusions: Although shorter stature was associated with increased risk of violent offending, our analyses strongly suggested that this relationship was explained by intelligence and other confounding factors. Hence, it is unlikely that height, a highly heritable physical characteristic, accounts for much of the unexplained heritability of violent criminality.
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| 5. |
- Chen, Qi, et al.
(författare)
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Maternal pre-pregnancy body mass index and offspring attention deficit hyperactivity disorder : a population-based cohort study using a sibling-comparison design
- 2014
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Ingår i: International Journal of Epidemiology. - Oxford, United Kingdom : Oxford University Press. - 0300-5771 .- 1464-3685. ; 43:1, s. 83-90
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Tidskriftsartikel (refereegranskat)abstract
- Background: High maternal pre-pregnancy body mass index (BMI) is associated with increased risk of offspring attention deficit hyperactivity disorder (ADHD). However, the role of unmeasured familial confounding for this association remains unclear.Methods: We conducted a population-based cohort study via linkage of Swedish national and regional registers to investigate maternal pre-pregnancy BMI (underweight: BMI <18.5; overweight: 25≤ BMI <30; obesity: BMI ≥30) in relation to offspring ADHD. We followed 673 632 individuals born in Sweden between 1992 and 2000, with prospectively collected information on maternal pre-pregnancy BMI, until they received an ADHD diagnosis or ADHD medication, death, emigration or 31 December 2009. Hazard ratios (HRs) were estimated by Cox proportional hazards models. Stratified Cox proportional hazards models were applied to data on full siblings to control for unmeasured familial confounding.Results: At the population level, pre-pregnancy overweight/obesity was associated with increased risk of offspring ADHD (HR(overweight) = 1.23, 95% CI = 1.18-1.27, P = 0.01; HR(obesity) = 1.64, 95% CI = 1.57-1.73, P = 0.01), after adjustment for measured covariates. In full sibling comparisons, however, previously observed associations no longer remained (HR(overweight) = 0.98, 95% CI = 0.83-1.16, P = 0.82; HR(obesity) = 1.15, 95% CI = 0.85-1.56, P = 0.38).Conclusions: The results suggested that the association between maternal pre-pregnancy overweight/obesity and offspring ADHD could be ascribed to unmeasured familial confounding.
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| 6. |
- Gustafsson, Nina-Katri J., et al.
(författare)
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Changes in alcohol-related harm in Sweden after increasing alcohol import quotas and a Danish tax decrease-an interrupted time-series analysis for 2000-2007
- 2011
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Ingår i: International Journal of Epidemiology. - : Oxford University Press (OUP). - 0300-5771 .- 1464-3685. ; 40:2, s. 432-440
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Tidskriftsartikel (refereegranskat)abstract
- Background Denmark decreased its tax on spirits by 45% on 1 October 2003. Shortly thereafter, on 1 January 2004, Sweden increased its import quotas of privately imported alcohol, allowing travellers to bring in much larger amounts of alcohol from other European Union countries. Although these changes were assumed to increase alcohol-related harm in Sweden, particularly among people living close to Denmark, analyses based on survey data collected before and after these changes have not supported this assumption. The present article tests whether alcohol-related harm in southern Sweden was affected by these changes by analysing other indicators of alcohol-related harm, e. g. harm recorded in different kinds of registers. Methods Interrupted time-series analysis was performed with monthly data on cases of hospitalization due to acute alcohol poisoning, number of reported violent assaults and drunk driving for the years 2000-07 in southern Sweden using the northern parts of Sweden as a control and additionally controlling for two earlier major changes in quotas. Results The findings were not consistent with respect to whether alcohol-related harm increased in southern Sweden after the decrease in Danish spirits tax and the increase in Swedish alcohol import quotas. On the one hand, an increase in acute alcohol poisonings was found, particularly in the 50-69 years age group, on the other hand, no increase was found in violent assaults and drunk driving. Conclusions The present results raise important questions about the association between changes in availability and alcohol-related harms. More research using other methodological approaches and data is needed to obtain a comprehensive picture of what actually happened in southern Sweden.
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| 7. |
- Hollander, Anna-Clara, et al.
(författare)
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Longitudinal study of mortality among refugees in Sweden
- 2012
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Ingår i: International Journal of Epidemiology. - : Oxford University Press (OUP). - 0300-5771 .- 1464-3685. ; 41:4, s. 1153-1161
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Tidskriftsartikel (refereegranskat)abstract
- Background Refugee immigrants have poorer health than other immigrant groups but little is known about their mortality. A comparison of mortality among refugees and non- refugee immigrants is liable to exaggerate the former if the latter includes labour migrants, whose mortality risk may be lower than that of the general population. To avoid bias, labour migrants are not included in this study. The aim was to investigate mortality risks among refugees compared with non- labour non- refugee immigrants in Sweden. Methods Population-based cohort design, starting 1 January 1998 and ending with death or censoring 31 December 2006. Persons included in the study were those aged 18-64 years, had received a residence permit in Sweden 1992-98 and were defined by the Swedish Board of Migration as either a refugee or a non-labour non-refugee immigrant. The outcomes were all-cause and cause-specific mortalities and the main exposure was being a refugee. Cox-regression models estimated hazard ratios (HRs) of mortality. Results The study population totalled 86 395 persons, 49.3% women, 24.2 % refugees. Adjusted for age and origin, refugee men had an over-risk of cardiovascular mortality (HR = 1.58, 95% CI = 1.08-2.33). With socio-economic factors added to the model, refugee men still had an over-risk mortality in cardiovascular disease (HR = 1.53, 95% CI = 1.04-2.24) and external causes (HR = 1.59, 95% CI = 1.01-2.50). Conclusion Refugee men in Sweden have a higher mortality risk in cardiovascular and external causes compared with male non-labour non-refugee immigrants. This study suggests that the refugee experience resembles other stressors in terms of the association with cardiovascular mortality.
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| 8. |
- Lager, Anton, et al.
(författare)
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Social origin, schooling and individual change in intelligence during childhood influence long-term mortality : a 68-year follow-up study
- 2011
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Ingår i: International Journal of Epidemiology. - : Oxford University Press (OUP). - 0300-5771 .- 1464-3685. ; 41:2, s. 398-404
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Tidskriftsartikel (refereegranskat)abstract
- Background Intelligence at a single time-point has been linked to health outcomes. An individual's IQ increases with longer schooling, but the validity of such increase is unclear. In this study, we assess the hypothesis that individual change in the performance on IQ tests between ages 10 and 20 years is associated with mortality later in life.Methods The analyses are based on a cohort of Swedish boys born in 1928 (n = 610) for whom social background data were collected in 1937, IQ tests were carried out in 1938 and 1948 and own education and mortality were recorded up to 2006. Structural equation models were used to estimate the extent to which two latent intelligence scores, at ages 10 and 20 years, manifested by results on the IQ tests, are related to paternal and own education, and how all these variables are linked to all-cause mortality.Results Intelligence at the age of 20 years was associated with lower mortality in adulthood, after controlling for intelligence at the age of 10 years. The increases in intelligence partly mediated the link between longer schooling and lower mortality. Social background differences in adult intelligence (and consequently in mortality) were partly explained by the tendency for sons of more educated fathers to receive longer schooling, even when initial intelligence levels had been accounted for.Conclusions The results are consistent with a causal link from change in intelligence to mortality, and further, that schooling-induced changes in IQ scores are true and bring about lasting changes in intelligence. In addition, if both these interpretations are correct, social differences in access to longer schooling have consequences for social differences in both adult intelligence and adult health.
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| 9. |
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| 10. |
- Magnusson Hanson, Linda L., et al.
(författare)
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Cohort Profile : The Swedish Longitudinal Occupational Survey of Health (SLOSH)
- 2018
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Ingår i: International Journal of Epidemiology. - : Oxford University Press (OUP). - 0300-5771 .- 1464-3685. ; 47:3, s. 691-692
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Cohort Profile in a nutshellThe Swedish Longitudinal Occupational Survey of Health (SLOSH) is a longitudinal cohort study with repeated follow-ups aiming to investigate longitudinal associations between work organization, work environment, labour force participation, health and well-being, taking social conditions, individual differences, health behaviours, coping strategies, work-private life interaction, sleep and ageing into account.In SLOSH, several nationally representative subsamples of working individuals, 16-64 years of age at inclusion, responding to baseline questionnaires, have been followed up biennially with more comprehensive self-report questionnaires.Since the start in 2006, six waves of follow-up data have been collected with successively increasing numbers of men and women invited. In total 40 877 individuals have been invited, and 28 672 (70%) have responded to follow-up questionnaires at least once.Further waves of follow-up are planned in 2018 and every second year in the foreseeable future.The follow-up questionnaires include a wide range of measures on work or non-work situation/leaving the labour force temporarily or permanently, social situation, health and well-being. The questionnaire data are also linked to register data on demographics, employment, enterprises and establishments and health.A strategy for data access has been developed, striving to satisfy legal requirements and ethical principles. Requests for data for specific research questions or collaboration are welcome via email: data@slosh.se. For more information, visit www.slosh.se.
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